Microstructure and mechanical properties of ZrB2-SiC porous ceramic by camphene-based freeze casting

被引：29

作者：

Du, Jiancong ^{[1
]}

Zhang, Xinghong ^{[1
]}

Hong, Changqing ^{[1
]}

Han, Wenbo ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150001, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Ceramic; Aerospace material; Microstructure; Mechanical properties; FABRICATION; COMPOSITES; STRENGTH; SLURRY;

D O I：

10.1016/j.ceramint.2012.07.012

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Camphene-based freeze casting technique was adopted to fabricate ZrB2-SiC porous ceramic with 3-dimensional (3D) pore network. ZrB2-SiC/camphene slurries (initial solid loading: 20 vol%, 25 vol% and 30 vol%) were prepared for freeze casting. Regardless of initial solid loading, the fabricated sample had dense/porous dual microstructure. The thickness of dense layer was about 200-300 mu m. The microstructures of ZrB2-SiC porous ceramics were significantly influenced by the initial solid loading, which determines the pore size, porosity and mechanical properties of the final products: (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：953 / 957

页数：5

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